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Hunter/Hunted is a main story quest and achievement/trophy in Fallout 4.

Quick walkthroughEdit

Main quest: Hunter/Hunted
Travel to the C.I.T. ruins.
Tune to the courser's radio frequency.
Use it to track the courser to Greenetech Genetics.
Find your way up the different stories of the building.
Kill Z2-47, the courser.
Recover the chip.
Reward: 350 XP
Leads to: The Molecular Level

Detailed walkthroughEdit

Upon getting the quest, travel to the C.I.T. ruins north of Diamond city. The "Courser Signal" will be available on the Pip-Boy's radio at that point, tune to it and follow the signal east to Greenetech Genetics.

Greenetech is filled with Gunners who are fighting the Courser. As you enter the building, the commander of the Gunners starts issuing orders over the intercom; he orders half of his troops to retreat up the building as the Courser advances on them and the other half to engage you. However, the majority of the Gunners assets will be thrown at the Courser. You have to fight your way up through the building. The Courser is just ahead of you the whole time, though he easily eliminates his opposition, littering his road with Gunner bodies.

Reaching the fifth floor, you will hear a salvo of explosions - missiles are being fired at the Courser (who shrugs them off). These explosions will not affect you. Once you get to the seventh floor, there is an elevator that takes you up to the top of the building.

Once there, the Courser can be heard threatening some Gunners for a password - one refuses to give it to him and will be executed. You may intervene in time to prevent the rest of the Gunners from being killed. Approach him and he'll ask what you want, shortly afterwards he will engage unless you say the deactivation code presumably obtained from Mama Murphy or Deacon. Once the fight is over, you can loot the Courser chip off his body and the quest is complete.

After the fight, you can see a woman locked in the room that the Courser was trying to gain access to. She asks you to retrieve the password to the door that one of the Gunners stashed in a nearby toolbox. Once she is let out, she reveals that she is a Synth and tells you that the Courser was after her and the Gunners caught her as she traveled across the Commonwealth. She will request to leave and will never be seen again.

Any Gunners that were not yet executed by the Courser will plead for you to spare them, there are no interactions with them otherwise. If left not killed, and K1-98 not let out, and left the building, upon return the Gunners will be missing and K1-98 will be dead.

Quest stagesEdit

StageStatusDescriptionLog Entry
10 Travel to C.I.T.Virgil has instructed me to travel to the old C.I.T. ruins and see if I can pick up a signal from a Courser using my Pip-Boy.
15 Tune to Courser's Radio FrequencyI need to tune to the Courser's Radio Frequency I picked up near the old C.I.T. ruins. With some luck the signal should lead me to a Courser.
20 Use the Courser's radio frequency to track the CourserI have locked on to the Courser's Radio Frequency using my Pip-Boy. Now I need to follow the signal and find the Courser.
30 Kill Z2-47, the Courser.The signal led me to Greenetech Genetics in Cambridge. I now need to find the Courser, kill him, and recover the chip... no trivial matter according to Virgil. I should proceed with caution.
40 Recover Courser chipI managed to kill the Courser in Greenetech Genetics. Now I need to recover the chip.
100Quest finishedIcon checkQuest completeI have killed the Courser in Greenetech Genetics and recovered the chip.


  • Unlocking the terminal before the fight will activate a special scene with the Courser and the synth.[verified]
  • With the Penetrator perk it is possible to target and kill the Courser from the floor below.
  • When left to idle in the topmost room, companions will sometimes curl up against the wall next to the remaining Gunners, copying their animations.


  • pcIcon pc In some cases, Z2-47 may immediately attack the player character rather than initiate dialogue.[verified]
    • Wearing power armor with a targeting HUD or while under the effects of Berry Mentats may cause immediate confrontation on sight, as it does in many other cases.
  • pcIcon pc Unlocking the terminal that opens the door to the Commonwealth and walking through the door will "kill" the Z2-47, and render his body missing and unlootable.[verified]
  • pcIcon pc When moving about the building, the conflict triggered by the Survivor's position can frequently cause an instant crash-to-desktop. [verified]
    • To remedy, use the TAI command when approaching these locations, and reactivate the AI after reaching the courser.
    • Alternatively, use the MOVETO command to warp to the courser's location, and finish the quest normally, using the roof access or an area warp to exit.
  • pcIcon pc If the Courser chip is looted too quickly after Z2-47 dies, the "Kill Courser" stage may not complete, preventing "Recover the Courser Chip" from being marked as complete. Though the quest still completes, this will lock the player out from Dejen's quest, Hunting the Hunter, since the required stage was not completed. To avoid this, wait for "Kill Courser" to be marked as complete before looting the chip. [verification overdue]
  • ps4Icon ps4 On rare occasions, Z2-47 will be found engaging Gunners en route to the top on the same floor as the player, which may result in him being killed prematurely either by the Gunners or attacks from the player character's actions. Although the quest itself is not effected, it may cause difficulty in recovering the Courser Chip. [verification overdue]

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